Fruit-evaporator



. 3Sheets-Sheet 1. J. B. SWEETLAND.

Fruit- Evaporator. No. 228,953. Y Patented June 15,1880.

N.PETERS, PKOTO-LITNOGRAPHER, WASHINGTON. 0J0

' 3 Sheets-Sheet 3. B SWEETLAND. Fru1t Evapo rater Patented June 15,1880.

Witnesses:

w ML WW1 NITED STATES JEROME B. SWEETLAND, OF PONTIAC, MICHIGAN.

FRUIT- EVAPO RATO R.

SPECIFICATION forming part of Letters Patent No. 228,953, dated June 15, 1880.

Application filed January 3, 1880.

To all whom it may concern:

Be it known that I, JEROME B. SWEET- LAND, of Pontiac, in the county of Oakland, and in the State of Michigan, have invented certain new and useful Improvements in Fruit-Evaporators; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accom mnyin g drawings, and to the letters of reference marked thereon, making a part of this specification.

Thenature of my invention consists in the construction and arrangement of a fruit-evaporator in which are used both the direct radiated heat from a furnace and the radiated heat from one or more steam-boilers and one or more steam-coils.

The evaporator is made in sections, so that it can be increased to any desired height according to the capacity desired. A partition is made in the base, which separates the one furnace from the steanrboilers with their furnaces, said partition extending high enough up to meet or connect with the end pieces of the SGI'66llfIELIIlBS, so that when said frames are put in a continuous wall will be formed across the evaporator from top to bottom, all as hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, in which Figurel is a perspective view of my improved fruit-evaporator. Fig. 2 is a longitudinal vertical section of the same. Fig. 8 is a perspective view of the fruit-evaporator, showing two sections used together.

A represents the base of my fruit-evaporator, in which is a metal pan or jacket, B, containing at one end a cylindrical firebox, 0, extending across the same. In the pan or jacket B are also one, two, or more cylindrical boilers, D D, with interior fire-boxes, G 0, extending across the same. All the fire-boxes are by pipes E connected with a common pipe, F, from which rises the smoke-stack Gr, so as to carry out the products of combustion from all the fire-boxes by one stack.

The body of the evaporator is intended to be made in sections, each section being complete in itself, so that one, two, or more such sections may be used, according to the desired capacity of the evaporator.

The section of the body consists of a suit- 5 able frame, H, lined completely on the inside with sheet metal I, and provided at each end with a door, J.

On the two sides of the body H I are ledges a a, upon which are placed screens L L, of such size that their frames will come close together, as shown, one above the other. They are of such length that two or more of them will lit from end to end of the evaporator on the same ledges. 6 5

In the pan or jacket B is a partition, I), between the fire-box O and the first boiler D, and then extending upward in angular form, as shown, or otherwise, sufficiently high to unite with the adjacent end pieces of the bottom screens. When the screens are then put in, as represented in Fig. 2, a continuous partition is formed, dividing, as it were, the evaporator into two chambers.

In one chamber the fruit is acted upon by 7 the direct radiated heat from the fire-box or furnace C, while in the other chamber it is acted upon by the milder heat from the boiler or boilers. This is of great importance in the successful drying of fruit, as when the fruit is first put in it requires for the first five minutes or more a strong heat. By the insertion of another screen the first screen is moved back over the boiler, the second screen taking its place over the fire-box O, and so on in each series.

At suitable intervals in each section of the body is placed a coil-pipe, M, which is connected with one of the boilers D-that is to say, each coil M should have a separate con- 0 nection end with one of the boilers, so that the steam shall not pass from one coil to another. Each coil is placed in a position slightly inclined toward its connecting-pipe N, so that all condensation will pass back into the boiler. However, each coil has an outlet, 0, with stopcock P, to blow off or allow part of the ,condensed water to pass into a tank, B.

By means of the coils M, I maintain a uniform steam-heat in the evaporator.

S is the roof of the evaporator, provided with the chimney V. This roof is removable,

so that it can be lifted off and another section put on, when the roof will be puton this section. 7

The object of subjecting the fruit first -to the action of the strong heat is that thereby a sort of skin is formed rapidly on the fruit, thus in a measure sealing the same so as to retain the flavor of the fruit.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination,in a fruit-drier, ofa front compartmcntprovided with a heating-furnace, a rear compartment provided with heatingboilers, one or more, and two series of trays, the frames of which at their point ofjunc'tion form a continuatiol'l upwardly of the partition between the two heatingcompartments, substantially as herein set forth.

2. In a fruit-drier, the combination of a base containing a front compartment having a heating-furnace, a rear compartment provided with one or more steam-boilers with furnaces, one or more sections, each containing two series of trays, the frames of which at their point ofjunctioniorm a continuation upwardly of the division between the two heating.-compartments, one or more steam- 'January, 1880.

J. B. SWEETLAND. Witnesses:

O. L. EVERT, H. AUBREY TOULMIN. 

